The first metal used by Man was:

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Q: 92 (RAS/2012)
The first metal used by Man was:

question_subject: 

History

question_exam: 

RAS

stats: 

0,104,26,6,5,104,15

keywords: 

{'first metal': [1, 0, 0, 1], 'copper': [1, 0, 1, 1], 'silver': [0, 0, 0, 1], 'iron': [0, 0, 1, 1], 'gold': [8, 1, 7, 14]}

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